                        >> DESCRIPTIVE STATISTICS <<

. summ

Variable |     Obs        Mean   Std. Dev.       Min        Max
---------+-----------------------------------------------------
      iv |    1376    .7317078   .1415948         .5          1  
      ec |    1376    .2061732   .2197265          0    1.68832  
  caseid |    1376     2506.82   1351.001        100       4800  
   south |    1376    .2492733   .4327496          0          1  
     dem |    1376    .6068314   .4886313          0          1  
      te |    1376    52.54651   20.33124          1         90  
  cut_hi |    1376    .0290698   .1680632          0          1  




                         >> CHALLENGER ENTRY MODEL <<

. cox te ec dem south iv, tv(caseid) dead(cut_hi)

Iteration 0:  Log Likelihood = -214.4447
Iteration 1:  Log Likelihood =-199.19264
Iteration 2:  Log Likelihood =-197.45444
Iteration 3:  Log Likelihood =-197.38855
Iteration 4:  Log Likelihood = -197.3884

Cox regression                                          Number of obs =   1376
                                                        chi2(4)       =  34.11
                                                        Prob > chi2   = 0.0000
Log Likelihood =  -197.3884                             Pseudo R2     = 0.0795

------------------------------------------------------------------------------
      te |
  cut_hi |      Coef.   Std. Err.       z     P>|z|       [95% Conf. Interval]
---------+--------------------------------------------------------------------
      ec |  -3.008885     1.3864     -2.170   0.030       -5.72618   -.2915903
     dem |   .2340996   .3239422      0.723   0.470      -.4008154    .8690146
   south |  -.4380054   .4239028     -1.033   0.301       -1.26884    .3928288
      iv |  -6.973655   1.657433     -4.208   0.000      -10.22217   -3.725146
------------------------------------------------------------------------------
